About multiple Animation

williamlai3a · Post by **williamlai3a** » Tue Jan 08, 2008 9:07 am

I have tried out the animators, and I found that each time only the newest added animator is active for the mesh to move.

eg: I first added a flystraight animator and then a rotation animator, the mesh will only rotate.

So, I want to ask how can I make the mesh move straight with keeping rotate?? And how can I create some self coded animator??

Thx a lot.

JP · Post by JP » Tue Jan 08, 2008 9:39 am

As you've found irrlicht only supports one animator at a time on a node. If you want to have it flying and rotating then you need to code your own animator (as you've also noticed).

To do that you can look at the source for the two animators in question and then basically just integrate the code of the two animators into one animator by writing a class extending ISceneNodeAnimator.

arras · Post by **arras** » Tue Jan 08, 2008 9:51 pm

Wasn't trying myself but may work:

Create empty node and attach it as parent of your node. Attach one animator to parent node ...probably flystrait one then attach rotate animator to node itself.

bitplane · Post by **bitplane** » Tue Jan 08, 2008 9:57 pm

I think this should probably be reported as a bug (or multiple bugs). It sucks that the built in animators don't play well with others, there's no real reason why they shouldn't work together, the system supports multiple animators... Link to tracker is directly below

hybrid · Post by **hybrid** » Tue Jan 08, 2008 11:14 pm

I thought that the problem with internal data was solved, didn't I remove the last class member in 1.3.1?

bitplane · Post by **bitplane** » Tue Jan 08, 2008 11:31 pm

oh

I haven't looked at this since I first started using Irrlicht
So is it possible to add a collision, fly circle, and rotation animator to make a character walk in a circle across the terrain?
Or flystraight, rotation and fly circle to make a loop-the-loop motion?

edit: oh you mean adding the same animator to multiple nodes?

Ico · Post by **Ico** » Wed Jan 09, 2008 12:23 am

Think it's about adding 2 or more animators to one node.

hybrid · Post by **hybrid** » Wed Jan 09, 2008 9:20 am

Hmm, maybe you're right and the bugfixing was oly for using the same animator for several nodes. But then, are there any two animators which can be applied at the same time? Otherwise I'd expect a more general, conceptual problem somewhere.

Ico · Post by **Ico** » Wed Jan 09, 2008 7:11 pm

Never tried it ... fly + rotate, fly + delete, rotate + delete

Hm ... while thinking about it ... I'm somehow missing animators to scale and fade single nodes if I haven't missed something.

williamlai3a · Post by **williamlai3a** » Thu Jan 10, 2008 3:41 am

JP wrote:As you've found irrlicht only supports one animator at a time on a node. If you want to have it flying and rotating then you need to code your own animator (as you've also noticed).

To do that you can look at the source for the two animators in question and then basically just integrate the code of the two animators into one animator by writing a class extending ISceneNodeAnimator.

Yes, so I really need to do a new animator.
Can you tell me where ahould I add the API for editing the engine?
It seems I need to add some class named C........Animator and some ABC class, am I right?

Thx